theben RM 8 H KNX 8-Way High-Performance Switching Actuator (4940217)

Description

Introduction

The theben RM 8 H KNX (SKU: 4940217) is an 8-way high-performance switching actuator engineered for professional KNX system integration. Belonging to the FIX2 module series, this device provides 8 independent switching channels driven by energy-efficient bistable relays. This device is part of our KNX system devices range.

Designed for DIN rail mounting, the actuator handles demanding capacitive and resistive loads, featuring a maximum inrush current handling capability of up to 1200 A for 200 µs. Operating with a low KNX bus current consumption of under 10 mA, it serves as a reliable control solution for advanced building automation projects.

Key Features

• 8-channel high-performance switching functionality in a FIX2 module layout.
• Bistable switching relays for minimal power consumption during operation.
• Handling of 25 A and 16 A contact types and up to 4800 W resistive load capability.
• Inrush current tolerance up to max. 1200 A / 200 µs.
• Standard DIN rail installation type with an 8-module width format.
• Direct KNX bus terminal connection with operating current under 10 mA.
• Terminal screw connections for reliable power wiring.

Benefits

• High Inrush Capacity: Capable of managing peak inrush currents up to 1200 A / 200 µs for reliable switching of high-demand loads.
• Energy-Efficient Operation: Equipped with bistable relays and an operating KNX bus current of less than 10 mA.
• Versatile Load Handling: Supports various lighting loads, including LED lamps (< 2 W: 75, 2-8 W: 850, > 8 W: 850) and energy saving lamps (410).
• Robust Electrical Isolation: Features protection class II according to EN 60 669 with contact opening widths under 3 mm.
• Flexible Wiring Support: Accommodates solid wire cross sections up to 6 mm² and stranded wire with end sleeves up to 4 mm².

Technical Specifications

Specification	Value
Operating voltage KNX	<10 mA
Energy saving lamps	410
LED lamp < 2 W	75
LED lamp 2-8 W	850
LED lamp 2-8 W	850
Inrush current	max. 1200 A / 200 µs
Installation type	DIN rail
Protection class	II according to EN 60 669
Width	8
Opening width	< 3 mm
Type of connection	Terminal screws | Bus connection: KNX bus terminal
Type	Module FIX2
Max. cable cross section	Solid wire: 0.5 mm² (Ø 0.8) to 6 mm² | Stranded wire with end sleeve: 0.5 mm² to 4 mm²
Number of channels	8
Type of contact	25 A, 16 A
Resistive load	4800
Handbook	PDF
Information Notice EU Data Act	PDF
CE declaration of conformity	PDF
Data sheet	PDF

Applications

• High-capacity lighting control circuits utilizing LED and energy saving lamps in commercial and residential KNX installations.
• Automated switching of resistive loads up to 4800 W across 8 independent channels.
• Building management environments requiring DIN rail module integration within distribution boards.

Installation Notes

• Mount the unit on a standard DIN rail inside an enclosure meeting EN 60 669 protection class II requirements.
• Connect the KNX line using the dedicated KNX bus terminal, verifying bus operating current is below 10 mA.
• Wire load circuits via terminal screws, using solid conductors from 0.5 mm² to 6 mm² or stranded wire with end sleeves from 0.5 mm² to 4 mm².
• Ensure contact opening width specifications (< 3 mm) align with system engineering documentation.

Developer Resources

• Official Manual: Available as downloadable PDF documentation.
• CE Declaration of Conformity and Information Notice EU Data Act available in PDF format.
• Technical Data Sheet provided in PDF format for project planning.

FAQ

How many channels does the theben RM 8 H KNX actuator provide?

It features 8 high-performance channels using bistable relays in a FIX2 module design. Explore more theben automation devices for professional building automation projects.

What is the maximum inrush current capacity of the theben RM 8 H KNX?

It supports a maximum inrush current of up to 1200 A for 200 µs. For certificates and current technical files, refer to the official product documentation.

What wire cross sections are supported by the terminal connections?

The terminal screws support solid wire from 0.5 mm² to 6 mm² and stranded wire with end sleeves from 0.5 mm² to 4 mm².

What is the operating current on the KNX bus?

The operating voltage current consumption on the KNX bus is less than 10 mA.

What is the exact product model?

The order/model code for this page is 4940217. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by theben.

Conclusion

The theben RM 8 H KNX 8-way high-performance switching actuator (4940217) delivers a robust, reliable solution for demanding load management in KNX building automation. Installers and system integrators can review our installer purchasing support options.

With high inrush current tolerance, bistable relays, and flexible terminal connections, it is an optimal choice for DIN rail distribution systems.